The stroke order of the I letter: the first stroke is vertical, and the second stroke is dot. Specific as shown in the figure below:

Related introduction:

1 and I are vowels in Chinese Pinyin, and the letter I appears as a vowel phoneme in Chinese Pinyin. Mandarin with the letter I has 16 vowels, namely I,–I (front),–I (back), in, ing, ia, ie, iao, iou, ian, iang, ai, e I, uei and uai.

The share and coverage of the letter I in the vowels of Putonghua exceeds 40%, and there are more than 140 I in the 400 basic syllables of Putonghua, accounting for one third of the basic syllables.

2. In mathematics, I represents the imaginary number (√- 1) unit in the complex number. The square of I is-1. I is the square root of (-1). The radical I is equal to: (√2)( 1+i)/2.